21339117202 has 48 divisors (see below), whose sum is σ = 35152652808. Its totient is φ = 9657584640.

The previous prime is 21339117199. The next prime is 21339117253. The reversal of 21339117202 is 20271193312.

It can be written as a sum of positive squares in 12 ways, for example, as 1447117681 + 19891999521 = 38041^2 + 141039^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32282752 + ... + 32283412.

Almost surely, 2^21339117202 is an apocalyptic number.

21339117202 is a deficient number, since it is larger than the sum of its proper divisors (13813535606).

21339117202 is a wasteful number, since it uses less digits than its factorization.

21339117202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 21339117202 in words is "twenty-one billion, three hundred thirty-nine million, one hundred seventeen thousand, two hundred two".